Two-Degree-of-Freedom H ∞ Control for Inductive Power Transfer System Based on Coprime Factorization

被引：0
作者：
Li Y. [1 ]
Du H. [1 ]
Yang M. [1 ]
He Z. [1 ]
机构：
[1] School of Electrical Engineering, Southwest Jiaotong University, Chengdu
来源：
Diangong Jishu Xuebao/Transactions of China Electrotechnical Society | 2018年 / 33卷 / 20期
关键词：
Coprime factorization; Inductive power transfer; Mutual-inductance perturbation; Robust control; Two-degree-of-freedom;
D O I：
10.19595/j.cnki.1000-6753.tces.171234
中图分类号：
学科分类号：
摘要：
In inductive power transfer (IPT) systems, mutual-inductance perturbation and load variation seriously affect system output performance and stability requirements. The generalized state-space averaging model of SP-IPT system is first introduced. The open-loop characteristics and output performance under parameter disturbances are analyzed afterwards. Then the perturbation model of SP-IPT system that contains right-half-plane zeroes is described by coprime factorization. The input/output variables used in two-degree-of-freedom (2DOF) H ∞ robust control are also selected and defined based on the perturbation model, and further the state-space realization of generalized plant is deduced. Finally, the simulation and experiment are carried out based on the 2DOF H ∞ robust controller. The results show that via the control action of 2DOF H ∞ robust controller, although the dynamic response performance of closed-loop perturbation system may deviate from the expected target, but the influence of mutual-inductance and load perturbations on the steady tracking performance for preset reference input can be effectively inhibited, which satisfies the system robust stability requirements. © 2018, Electrical Technology Press Co. Ltd. All right reserved.
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页码：4746 / 4755
页数：9
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